Offers the performance of an 18" subwoofer in a package not much larger than a typical 15" sub.

The PRX618S 18" Portable Subwoofer is a high-performance powered compact subwoofer system. The PRX618S is comprised of a 268G 460mm (18") Differential Drive dual voice-coil and magnetic gap, neodymium woofer driven by a Crown Class-D power amplifier. The amplifier input panel offers stereo or mono line level inputs via balanced XLR connectors as well as a single channel speaker level input via a 1/4" TS phone jack. Signal processing, crossover functionality and limiting for the system is integrated into the input section functionality. Overall subwoofer input sensitivity is controlled by a single easy grip knob and a simple switch enables polarity reversal for sub/satellite system optimization. Signal present and limit lights indicate performance status.

Compact and powerful, the PRX618S offers the performance of an 18" subwoofer in a package not much larger than a typical 15" sub. With a pole receptacle (that accepts a SS3-BK or SS3-BK24) on the top panel and integrated stereo pass-thru, with selectable HP filter, this is the perfect compliment to the PRX600 full-range systems. Configured with a PRX612M or PRX615M the result is a highly transportable, high-performance subs/satellite system. The addition of polarity reverse options further enables integration with any top cabinet.

All PRX600 cabinets are built from a combination of 1" (25mm) on the top and bottom for added rigidity, and 3/4" (18mm), strong, lightweight poplar plywood made structurally sound with tongue and groove joints. All PRX600 Series cabinets are protected by JBL's tour-proven DuraFlex finish. Grilles are made from dent-resistant 16-gauge steel and handles are made from lightweight glass-filled nylon for added strength and durability.

PRX600s have been certified "Green Edge" compliant by Harman Professional.

SPECIAL NOTE: JBL highly recommends that no more than 70 lb. of weight be placed on a speaker pole that is mounted to a PRX618S or PRX618S-XLF.

JBL is the best product out there for MID to High end PA gear. Do yourself a favor and go with all PRX. This will save you having to lug around amps, crossovers, EQs. I have 2 of the PRX618s subs, and 2 each of the JBL MRX speakers on top of each subwoofer. I wish I bought the PRX tops instead. Makes setup and breakdown so much easier. Still everything sounds great together.I just finished a 24 hour gig for RELAY FOR LIFE, and used the system constantly. Live music, DJ music," and announcements galore. The speakers sounded excellent.""YOU GET WHAT YOU PAY FOR!!!!""Easy to move (70lbs)", easy to set up, easy to link.It's JBL, winning ....duh!!!On the higher end of the powered subs," but I always agree....""YOU GET WHAT YOU PAY FOR!!!!""

Bought 2 of these at a local store last week to use in tandem with our PRX718s. Right out of the box I could tell that it was a lesser quality speaker. The rear plate is very cheezy compaired to the older 718. During our show (rock band) one speaker totally died and other other one sounded so bad that I had to turn it off. I took them back and bought the 618XLF. Although I haven't tried the XLFs yet they look to be build simular to the older PRX718.